better sound or no?

maxpou · 2008-02-07 9:06 pm

Hi,
i would like to know if i will have a better sound with this mod? Thank you! maxpou
this is my power amp at this time!

maxpou · 2008-02-07 9:08 pm

modification!

tedr · 2008-02-08 5:45 am

help us out here..........................

what did you change and why?

PMA · 2008-02-08 8:09 am

He has buffered the output stage driver (Q14, Q15).

Onvinyl · 2008-02-08 8:59 am

Hi,
you might consider to try it out and report back!

Rüdiger

PMA · 2008-02-08 9:17 am

Generally speaking, buffering should help to drive high MOSFET capacitances.

peranders · 2008-02-08 9:57 am

The mosfet output stage has no feedback, why?

PMA · 2008-02-08 10:09 am

No feedback across out. st. only in "modification". Maybe maxpou would tell us the bias current.

maxpou · 2008-02-08 5:01 pm

thank you Guys for reply!

PMA said:
Generally speaking, buffering should help to drive high MOSFET capacitances.

Yes, but i will have a better sound or no and if yes what's going to change?

PMA said:
No feedback across out. st. only in "modification". Maybe maxpou would tell us the bias current.

i have about 1.35A bias current.

thank you! Maxpou

maxpou · 2008-02-10 8:27 pm

Hi,
somebody can tell me if my VAS ans driver choice is ok or it would be better? thank you Maxpou